Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December signals a subtle shift in temperature, down from a chilly 6.6°C (43.9°F) in November to a cold 3.4°C (38.1°F). A consistent average low of 1.4°C (34.5°F) is noted in Ruhnu throughout December, only a small step down from its daytime high.Humidity
The average relative humidity in December is 83%.Rainfall
In Ruhnu, during December, the rain falls for 11.3 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 133.3 rainfall days, and 249mm (9.8") of precipitation is accumulated.Snowfall
Months with snowfall in Ruhnu are January through April, October through December. In Ruhnu, in December, snow falls for 8.2 days, with typically accumulated 24mm (0.94") of snow. In Ruhnu, during the entire year, snow falls for 41.3 days and aggregates up to 108mm (4.25") of snow.Daylight
With an average of 6h and 42min of daylight, December has the shortest days of the year in Ruhnu, Estonia.On the first day of December in Ruhnu, sunrise is at 08:46 and sunset at 15:46. On the last day of the month, sunrise is at 09:10 and sunset at 15:49 EET.
Sunshine
December has the least sunshine of the year in Ruhnu, with an average of 2h of sunshine.UV index
January, March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is December in Ruhnu?
What is the average humidity in December in Ruhnu?
How many days does it rain in December in Ruhnu?
How much does it snow in Ruhnu in December?
What is the month with the shortest days in Ruhnu?
What is the average length of the day in December in Ruhnu?
When are sunrise and sunset in December in Ruhnu?
What is the month with the least sunshine in Ruhnu?
How many hours of sunshine does Ruhnu have in December?
What is the month with the lowest UV index in Ruhnu?
What is the UV index intensity in December in Ruhnu?
Average temperature in December
Ruhnu, Estonia
- Average high temperature in December: 3.4°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The month with the lowest average high temperature is February (-0.4°C).
- Average low temperature in December: 1.4°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (-2.3°C).
Average pressure in December
Ruhnu, Estonia
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in December
Ruhnu, Estonia
- Average wind speed in December: 33.1km/h
The windiest month (with the highest average wind speed) is December (33.1km/h).
The calmest month (with the lowest average wind speed) is May (19.2km/h).
Average humidity in December
Ruhnu, Estonia
- Average humidity in December: 83%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Ruhnu, Estonia
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is August (38mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in December
Ruhnu, Estonia
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Ruhnu, Estonia
- Average snowfall in December: 24mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Ruhnu, Estonia
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ruhnu, Estonia
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in December
Ruhnu, Estonia
- Average sunshine days in December: 9 days
The month with the most sunshine days is May (18.7 days).
The month with the least sunshine days is December (9 days).
Average UV index in December
Ruhnu, Estonia
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Ruhnu, Estonia
- Average cloud cover in December: 76
The month with the most cloud cover is December (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Ruhnu, Estonia
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Ruhnu, Estonia
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